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1UN ITED STATES c 1 '1; 1- 5 ATM ld l* IE.

BIELLEN BTTEL, OF ALBANY, NEW' YORK.

FURNACE.

Specification of Letters Patent No. 30,040, dated September 18, 1860.

To all inkom 'it may concern: fuel at the end, or side. They may be made Be it known that I, MELLEN BATTEL, of open, so that the material may be sifted, on

the city and county of Albany and State of to the grate below, as it becomes dried or New York, have invented a new and usecoked as the cylinder revolves; or it may be 50 ful Improvenient in the Mode of Constructretained in the cylinder, or box, until it being a Coking or Drying Cylinder' for Gokcomes coked, or dried, and then dumped ing and Burning Bituminous Coal, Bagasse, into the grate below, by opening a door, or other Damp Fuel; and I do hereby dedrawing a bolt, or drawing a slide. These clare that the following is a full, clear, and cylinders, or boxes, are hung on a hollow 65 A exact description of the same, reference beshaft, with holes perforated through the ing had to the accompanying drawing, formshaft, to allow the atmospheric air to pass ing part of this specication, in whichinto the cylinders and cominingle with the ff Figure l is a vertical section of my inicoal as the cylinder revolves, and the coal proved boiler on wheels, heretofore patented becomes heated. Openings are left in the 70 by me with my present improvement apcylinder to allow the gases to escape freely. plied. Fig. 2 is an end view of the same, Between the bridge wall and these cylinders, showing the end of the cokin cylinder and I place a water leg, from the crown sheet of endless screw, and gears, and pulleys, and the furnace, to extend down as low as the a, band, connecting with the main shaft. Fig. lower edge of the coking cylinder, to protect '75 5 is a vertical section of one of the middle it in a measure from the intense heat of the sections or views that forms the coking or furnace, and to compel the smoke, and drying cylinder, with one hollow arm to from the cylinder to pass down, in contact convey the air from the shaft to the rim, with the heated furnace below; and the so as to cominingle the air with the whole back end of the shaft of the coking c vlin- 80 body of the coal, at the same time. As the der is held up by the water leg, by insertcylinder revolves these sections are placed ing a pipe through the leg, and if it should such a distance apart as the case may rebe necessary to further protect these cylinquire, and held together by shaft and bolts. ders from the heat of the furnace, water Fig. 6 is an end view of a coking or drying pipes may be thrown around them, as shown 85 cylinder, opening by a door on one side, to letter G. lVhen these cylinders are used, receive the fuel from the top of the boiler without being directly in connection with a or furnace. Openings are made to allow the steam boiler, or with a brick fire box, the gases to escape freely. Fig. 7 is an end view coking cylinder should be placed crosswise of a coking or drying cylinder, opening'by of the fire-box, so that the back end of the 90 F a slide to receive the fuel from the top of hollow shaft of the coking cylinder, will the boiler, or furnace, or the end, as the pass through the side of the ire box by a case may be. Fig. 8 is an end view of a cokpipe. In that case, a leg of soap stone, or ing or drying box hung on a hollow shaft, other lire proof material should take the perforated with holes, to admit the air to place of the water leg. 95 40 commingle with the coal as the box re- To enable others skilled in the art, to make volves, with a slide door to receive the fuel and use my invention, I will proceed -to defrom the top of the boiler, or furnace. scribe its construction and operation. These coking cylinders, or boxes, may be A, A, is the outside shell of the boiler. moved by crank and endless screw, as shown B, is t-he inside shell or ire box. 100 at Fig. 2, or by crank, or clock-work, as the C, is the fire box or furnace, wholly surcase may require. rounded with water.

Similar letters of reference, indicate cor- D, is the hollow shaft of the coking or responding parts, in the different views. drying cylinder perforated with holes, in its My invention consists in the employment, whole length, to convey air through the arm 105 in the lire box, of a boiler, or other furand rim, to commingle with the coal and gas nace, over or above the grate, a revolving as it revolves. It may be made open, to cylinder, or box, for the purpose of coking allow the materials to sift through when bituminous coal, or drying other wet. fuel. coked, or dried; or slides may be shoved in, These cylinders may be made in various to retain fine materials, till itis dried or 110 forms, according to the situation, and macoked, and then the slide be withdrawn.

terial that is used, and to open to receive the E, is the out edge, or periphery of the cylinder. These cylinders may be cast solid, excepting the door and ends, and air-holes; and either of the various forms may be used in the same furnace.

F, is the water leg, extending from the crown sheet of the boiler, or fire-box, to near the lower edge of the coking cylinder, and supporting` the back end of the hollow shaft of the coking cylinder.

I, is the water pipes that protect the cylinder.

H, is the end door of the coking cylinder.

U, is the shaft, and pulley, and endless screw, and band, that moves the coking cylinder from the main shaft.

D, is the opening from the top of the furnace or boiler, to feed the coking cylinder, shown Fig. 2; W, the handle that raises the endless screw out of gear, to stop the cylinder at pleasure; X, the slide door as shown Fig. 7 Y, the door as shown Fig. 6; Z, the slide door as shown Fig. 8; Z9, the crank that turns the cylinder when not in motion.

After the fuel falls from the cylinder to the grate, I provide a vibrating Hearn-tooth rake, that works between each grate-bar at the same time, with the teeth turned up, to facilitate the combustion of the fuel, and after the smoke, and gas, passes from the furnace, they pass into a combustion chamber, where I provide an atmospheric pillar formed of lirerlay, or black lead, to facilitate the combustion of the gases. In this pillar, I insert an iron air-tube extending to near the top of the pillar, to meet the light combustible gases. The smoke, and gases then pass through what I call a gas heater.

y The air that supplies these pillars, may be taken in hot from the back of the furnace L, or be taken in cold from the bottom of the combustion chamber, as shown letter M. After the smoke, and soot, or sparks, pass to the top of the smoke stack,-I provide a director to prevent the soot, and sparks from coming in contact with the trains in the rear; and when passing through a city or village, a valve closes the director, and opens the top, and lets the sparks out, in the ordinary way.

I, is the Hearn-tooth rake; G, the arm that works the ieam-tooth rake.

K, is the rod that raises and lowers the rake.

L, is the valve that lets in the hot air; M, the cock that lets in the cold air; N, the gas pillar; O, the air-pipe inserted in the pillar; P, the gas heater shown at Fig. 4; Q, the bevel wheel that revolves with the director, moving in a groove on the top of the smoke pipe.

R, is the spark and soot director; S, the valve that closes and opens the director.

T, is the chain that lowers and raises the valve.

a is the shive, on the bottom of the director, moving in a groove, on the top of the smoke pipe.

C is the crank, and shaft, that the attendant revolves the director at pleasure.

I do not claim a coking oven, as now used; but

I claim- A coking, or drying-cylinder, or box, hung on a hollow shaft, in the fire-box of a boiler, or other furnace, over, or above, the grate, the shaft being perforated with holes, to allow the atmosphere to pass in, by a cock or valve, to commingle with the coal and gases as the cylinder revolves; and if necessary `to pass from the hollow shaft, through the arms, to the rim of the cylinder, and then pass out in jets, these cylinders to be revolved at pleasure, substantially as set forth for the purposes herein described, and made to operate.

MELLEN BATTEL.

In the presence of- JoHN CosTIGAN, JOHN BURTON. 

